Looks like the USB driver and USB library files installed on your system are not compatible.
You should see:
09:31:06.531: USB driver version: 2.8.20
09:31:06.532: USB library version: 3.1.18
Is it possible that you have software installed from a different vendor that also uses the FTDI USB drivers and that software has installed a later driver version?
If you do have other software that requires a later version you may need to install the latest FTDI USB drivers for EFILive using the program:
Start->All Programs->EFILive->V8->Tools->USB Manager.
Or you could try going back to the earlier version of the USB drivers using the same USB Manager program.
Regards
Paul